Originally Posted by budgetgamer120
You have any proof to discredit EV Semis?
A video above shows a Model X drag racing while towing a 4000 pound car.
Drag races are fine. But look up any video of tesla's racing on regular circuits. About 1 minute in, the batteries start to overheat and power is limited. Of course they would have that solved on a semi, but there is still a reason why Ford only need 6.7L to make a 450hp diesel, and semis need 12 or so liters. That's how they live a long reliable life. So you'd need to at least double the size of the motors in the tesla to rate them for contentious duty.
Originally Posted by ShrimpBrime
Electric Tractors will not be common place for well more than 10 years.
To many greeds in the Big oil industry.
Besides the fact that most common tractors have more issues with DPF and DEF electrical. Sensors, wiring and even the ACM, BCM and can include failure of ECM modules.
Say no to wires.
Batteries blow up.
Saw mention of locomotive, diesel/electric...... Well it took about two decades of this particular technology to catch the horse power of simple steam locomotives.....
In our fleet of 67 tractors, our oldest models are the most reliable. Very very few electrical components to repair. Oh the water pump is bad? No problem 1 hour fix. Electrical? Well that requires a lap top, expensive software, hours of schooling and nothing but..... more parts more problems. More electrical more problems.
Now build a tractor completely of electrical and drive that through the salt belt of America. Good freaking luck.
It wasn't until the very late 90s and effectively 2000s that we started seeing locomotives with over 6000hp like the largest of the steam locomotives. Not only that, but most steam locos were actually faster. :o Granted, the hp side of things was mostly from a policy of more, smaller locomotives.
Originally Posted by andrews2547
Maybe in the US, but in Europe they would be great if truck stops had a place to charge them. There is a lot more space in semi trucks for a lot of batteries compared to cars, if they can get 600 mile ranges out of them (I'd be surprised if the range is 600 miles or less) and can fully charge them in 2 hours, then they're good enough to be used properly on the roads in Europe.
Electric motors could also produce significantly more torque than turbo diesel motors. You can get electric motors that can produce over 800kW, 4000Nm (~1100hp, ~2950lb-ft), as a comparison, the most powerful commercially available truck you can get in Europe at the moment (Volvo FH16 750) "only" has 560kW, 3550Nm (~750hp, ~2620lb-ft).
It might could work in Europe.
Torque isn't and issue with modern truck gearing Andrews. You only really need the torque for starting off and shifting on grades and trucks have proven themselves to be capable of hauling well more than the legal weight limit. (Eg, heavy hauling applications)
A lot of people in this thread are understandable supportive of this because electricity is more efficient that small diesels. But, how much efficiency is left after charging and discharging the battery (both make heat) and losses from the original power production (probably coal)? Not to mention making new batteries every x miles. Why not go straight from the horse's mouth with electric trains? Hell, any train.
Even with a theoretically perfectly efficient truck you will still see a lot of loss from the aerodynamic and rolling losses. Why not utilize the under-utilized rail system in America? A 600hp semi can pull 1 trailer, a 6000hp train can pull 30+ cars, of more than double the weight. That is a better idea IMO than clogging the interstates with autonomous, electric trucks.
One last issue I forgot to mention:
Let's say a fleet cashes in on this new technology, and buys 100 trucks. Then Tesla decides it's not making them money and pulls the program, now you have thousands of useless electric trucks because no one can charge the batteries, and you just bankrupted company with fleet A.
Shoot, meant to edit first post and not make a new one. If a mod would like to combine them, that would be appreciated.